My battery wire keeps melting!, 94 ST, PLEASE read! thanks!- Options

[mgnt232]

So im not sure where this wire goes, but its the smallest one on the (pos.) battery. When I replaced my engine the wire got cut too short and now I have to make a small extension on the wire (only about 5") But and I am pretty sure this is why it keeps melting but I need some opinions,
I keep using a 12 gauge (have used auto, and home electric wire both melted). But I am thinking the wire that is stock is a 10 gauge, that part never melts only the small extension will melt the casing, or any amount ot electrical tape right off of it. It is in the engine bay so it may get hot i guess but I even put some split loom on it and it melts on the inside.
Is this because I am using too small of a wire?
Thanks to anyone who can help me confirm my problem!-

This post has been edited by mgnt232: Mar 9, 2010 - 6:30 PM

[T3rrorbyte]

I would trace the wire see where it goes and check the shething hasn't crack and the wire is touching the body work. is it possible it got nicked/pinched or trapped when the engine was changed?

It sound like the wire making a circuit somewhere in your car and the extension piece you are putting in is becoming the fuse so to speak and burning out.

I also agree with what the others have said about gauge's of wire.

Hope you get it sorted buddy